|
|||||
|
|
Dislocation substructures and internal stress fields in bulk- and differentially quenched rails |
|
| Authors: | V E Gromov K V Volkov A M Glezer Yu F Ivanov K V Morozov K V Alsaraeva S V Konovalov |
| Institution: | 1. Siberian State Industrial University, Novokuznetsk, 654007, Russia 2. OAO EVRAZ Consolidated West Siberian Metallurgical Plant, Novokuznetsk, 654000, Russia 3. I.P. Bardin Central Scientific Research Institute of Ferrous Metallurgy, Moscow, 105005, Russia 4. National Research Polytechnical University, Tomsk, 634050, Russia 5. Institute of High Current Electronics, Siberian Branch, Russian Academy of Sciences, Tomsk, 634055, Russia |
| Abstract: | A layer-by-layer analysis of rails bulk-hardened in oil and differentially hardened in a variety of regimes is performed by means of transmission electron microscopy. Quantitative parameters of dislocation substructures and internal stress fields, and their dependences on the distance from the tread contact surface are established. It is shown that the most dangerous stress concentrators are interfaces between globular cementite matrix particles; such interfaces form predominantly in rails subjected to bulk quenching. |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ | |